[fix] VSCode keyboard shortcuts while editing text (#2721)

This PR fixes a bug where keyboard shortcuts weren't working in the vs
code extension. We had taken some extra steps early on to prevent kbds
from running while an input was focused, but we've since solved this bug
in the kbd logic itself.

Closes #2717 

### Change Type

- [x] `patch` — Bug fix

### Test Plan

1. Using the vs code extension, edit text and then use keyboard
shortcuts, e.g. for select all or copy / paste
2. Confirm that regular tldraw shortcuts don't fire when editing text

### Release Notes

- Fixed a bug in the VS Code that prevented keyboard shortcuts from
working in text labels.

packages/tldraw/src/lib/shapes/shared/useEditableText.ts

@@ -101,8 +101,6 @@ export function useEditableText<T extends Extract<TLShape, { props: { text: stri
 		(e: React.KeyboardEvent<HTMLTextAreaElement>) => {
 			if (!isEditing) return
 
-			if (e.ctrlKey || e.metaKey) stopEventPropagation(e)
-
 			switch (e.key) {
 				case 'Enter': {
 					if (e.ctrlKey || e.metaKey) {